The U.S. had neither an embassy nor a consulate in Benghazi. That much is plain. What exactly we had there our Department of State has labored long and hard to obscure. It seems to have been a CIA spy base. Islamist militants attacked it, perhaps believing that the CIA was detaining or torturing their fellows there. We don't know if they were right.All of which has nothing to do with the confirmation of a new chair of the Federal Reserve. There is no legitimate coupling of the one to the other. Janet Yellen deserves confirmation. And we deserve to know whether ambassador Chris Stevens was killed in performing his diplomatic mission, or in shilling for our CIA.